Facetime On/Off Missing Help!

Hello Guys, I've 2 iPhone 4, 1 is bought from India & other one from Dubai.
The iPhone4 from Dubai won't show Facetime ON/OFF option in settings while the one from India says "Waiting for activation"
How do i fix this thing ? Help appreciated..

There is also something similar called FaceTime Hacktivator that might help. BUT if you are using it in a country that allows FT, you can probably get it activated via Apple or a carrier settings update. Good luck!

Thanks i'll definately check the link above.
BTW, i live in India and it allows FT, how do i get it activated via Apple and the carrier settings update? Any detailed explanation ?
Sorry but i'm a newbie to this.